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2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems最新文献

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Growth Process of Novel Thin Films by Directed Self Organization of Nanoparticles 纳米颗粒定向自组织制备新型薄膜的研究
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352016
S. Promnimit, S. Pratontep, C. Thanachayanonr, J.K. Park, J. Dutta
{"title":"Growth Process of Novel Thin Films by Directed Self Organization of Nanoparticles","authors":"S. Promnimit, S. Pratontep, C. Thanachayanonr, J.K. Park, J. Dutta","doi":"10.1109/NEMS.2007.352016","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352016","url":null,"abstract":"This work reports on the growth process of multilayer thin films based on layer by layer (LBL) deposition of engineered nanoparticles. The LBL thin films were constructed with zinc sulphide nanoparticles capped with a polyelectrolyte such as chitosan, and gold nanoparticles stabilized by electrostatic charges. The LBL process of self assembly of nanoparticle monolayers & subsequent monoparticulate layered sandwiched units were built on silanized substrates by repeating the self-organization process. The authors discuss tie linear growth of the layers upon multiple dipping, the surface morphology of the obtained films, and the I-V characteristics with increasing film thicknesses.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115270979","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Study on the Cell Mechanics of MDCK Cells by Elastic Micro-pillars Arrays 弹性微柱阵列对MDCK细胞力学的研究
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352215
Chien-Wen Wang, Wei-Ren Chen, Ching-Chou Wu, Hsien-Chang Chang
{"title":"Study on the Cell Mechanics of MDCK Cells by Elastic Micro-pillars Arrays","authors":"Chien-Wen Wang, Wei-Ren Chen, Ching-Chou Wu, Hsien-Chang Chang","doi":"10.1109/NEMS.2007.352215","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352215","url":null,"abstract":"The cellular force is one of the most important parameters of cellular physiological behavior and mechanical interactions between the cell and its environment which could regulate the cell migration, contractility and gene expression. In order to evidence the characteristics of the physiology and cellular mechanics of the epithelial cells, therefore, we use the micro-pillars arrays (MPAs) to measure the traction force of the Madin-Darby canine kidney (MDCK) cells. When MDCK cells adhere on the different geometry of MPAs, the cell will pull MPAs and cause the pillars displacement due to the traction force. Furthermore, the cellular image and the displacement of the pillars could be analyzed by optic microscope system, and could be evaluated the mechanical interactions between the cells and MPAs. Therefore, this method might help us understand the cellular mechanics and physiological phenomenon between the cells and underlying substrates.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115693798","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Application of Conductometric Capillary Electrophoresis Microchip in Detect Organic and Inorganic Ions 毛细管电导电泳芯片在有机和无机离子检测中的应用
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352221
Y. Chu, Ming-Tai Lu, Hsien-Chang Chang
{"title":"Application of Conductometric Capillary Electrophoresis Microchip in Detect Organic and Inorganic Ions","authors":"Y. Chu, Ming-Tai Lu, Hsien-Chang Chang","doi":"10.1109/NEMS.2007.352221","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352221","url":null,"abstract":"Conductivity detection can be considered electrochemical technique as well but has the ability to detect any analyte irrespective of whether it contains an or not. The authors used MEMS to fabricate the microelectrode. The microchannel was made by PDMS and modified by O2 plasma. In this study the authors detected organic components such as catechol, dopamine, histamine and vitamin C, and inorganic ions like K+, Li+ and Ca2+. In 30 sec electrokinetic injection time for individual sample detection was performed using a field strength (E) of 440 V/cm, and E = 230 V/cm for separation electrophoresis. Each sample can be detected less than 90 sec excluding catechol.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114929279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Characteristics of Cholesteryl Cetyl Carbonate Liquid Crystals as Drug Delivery Systems 胆固醇-十六烷基碳酸酯液晶作为药物传递系统的特性
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352210
R. Chuealee, P. Aramwit, T. Srichana
{"title":"Characteristics of Cholesteryl Cetyl Carbonate Liquid Crystals as Drug Delivery Systems","authors":"R. Chuealee, P. Aramwit, T. Srichana","doi":"10.1109/NEMS.2007.352210","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352210","url":null,"abstract":"A thermotropic liquid crystals of cholesteryl cetyl carbonate was investigated as a novel nanosystem for delivery of lipophilic drugs. The aims were to synthesize, characterize and develop a formulation for amphotericin B (AmB) in cholesteryl cetyl carbonate liquid crystals. Cholesteryl cetyl carbonate was synthesized and identified by thin layer chromatography (TLC), flash column chromatography, Fourier transformed infrared (FTIR) spectroscopy, mass spectrometry (MS) and Nuclear magnetic resonance spectroscopy (NMR). X-ray diffraction (XRD), transmission electron microscope (TEM), polarized light microscope and differential scanning calorimetry (DSC) were employed to characterize liquid crystals properties. Cholesteryl cetyl carbonate structure is composed of three parts; steroid planar nucleus, hydrocarbon chains and carbonate linkage between the two parts of steroid ring and hydrocarbon chain from fatty alcohol. The phase transition temperatures appeared at around 8 and 36degC and cubic-shaped formation were observed in a micrograph at room temperature. The formulations of AmB in liquid crystals after physical mixing with a sugar revealed high content uniformity and had good characteristics of dry powder forms. It caused low toxicity to red blood cells.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124909941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Special Invited Lecture: Integrated MEMS Sensors 特邀讲座:集成MEMS传感器
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.351988
S. Xia
{"title":"Special Invited Lecture: Integrated MEMS Sensors","authors":"S. Xia","doi":"10.1109/NEMS.2007.351988","DOIUrl":"https://doi.org/10.1109/NEMS.2007.351988","url":null,"abstract":"Monolithic ISFET (ion-sensitive field-effect transistor) pH sensor and microelectrode amperometric immunosensor based on the micro fabrication technology have been studied. The Monolithic ISFET sensor, including the differential ISFET/REFET sensing device and the signal-processing circuit integrated on a single chip, was fabricated by standard CMOS and MEMS technology. Polypyrrole were electropolymerized at different voltage on ISFET gate and REFET gate to form ion-sensitive membrane and ion-insensitive membrane. Micro and compatible amperometric immunosensor, composed of micro electrodes and micro reaction pools, was developed by MEMS technology. Bireceptor molecules were immobilized on the sensitive area of the electrode surface by the technology of self-assembled monolayers. The immunosensor was characterized by detection of immunoglobulin G and ¿-fetoprotein. Both kinds of the sensors show attractive advantages, such as miniaturization, compatibility with CMOS techniques, easy to be designed into micro array and enables relatively rapid, reliable and inexpensive field-analysis.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125114015","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rapid Fabrication of CNT Sensors Using Electro-chemical Deposition of Functionalized CNTs 电化学沉积功能化碳纳米管快速制备碳纳米管传感器
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352068
W. Chow, M. Wong, W.J. Li, K. Wong
{"title":"Rapid Fabrication of CNT Sensors Using Electro-chemical Deposition of Functionalized CNTs","authors":"W. Chow, M. Wong, W.J. Li, K. Wong","doi":"10.1109/NEMS.2007.352068","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352068","url":null,"abstract":"We present a novel fabrication technique to fabricate functionalized CNT sensors rapidly using electrochemical deposition method. The basic fabrication process of this sensor includes fabrication of a gold (Au) microelectrode array by photolithography process, functionalization of multi-walled carbon nanotubes (MWNTs) with carboxylic acid groups (-COOH), and electro-chemical deposition of functionalized MWNTs (f-CNTs) on the Au microelectrode array. The adhesion between the f-CNTs and the Au microelectrodes could be enhanced if CNT sensors are built using the process described in this paper. The I-V characteristics of the sensors were investigated. Our experimental results show that CNT sensors fabricated by electro-chemical process have dramatically different I-V characteristics compared with sensors fabricated by DEP or AFM manipulation techniques. The power limit of the sensors ranges from 0.28mW to 6.21mW, which is much higher than most reported CNT sensors. Self-heating effect can be induced at input power of ~2.2mW. Based on these experimental results, we think that the novel f-CNT sensors should be investigated further for applications in thermal, mechanical, and biomedical systems.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124347611","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Synthesis of High Quality ZnO Nanorods by Low Temperature Wet Chemical Process 低温湿化学法制备高品质ZnO纳米棒
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352132
K. Lee, K. Park, K. Koh, Soonil Lee
{"title":"Synthesis of High Quality ZnO Nanorods by Low Temperature Wet Chemical Process","authors":"K. Lee, K. Park, K. Koh, Soonil Lee","doi":"10.1109/NEMS.2007.352132","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352132","url":null,"abstract":"The authors synthesized high quality ZnO nanorods on Au-and ZnO-coated ITO substrates using a low temperature wet chemical process. Scanning electron microscopy and X-ray diffraction showed that ZnO nanorods were vertically aligned on both type of substrates. Room temperature photoluminescence (PL) measurements showed a strong band-edge emission at ~380 nm for ZnO nanorods on both type of substrates, but substrate-dependent difference was observed in weak and broad visible emissions. Through the careful and systematic analysis of PL spectra, the authors confirmed that the apparent peak at ~760 nm were nothing but the second-order feature of the band-edge emission. Finally, the authors took advantage the selectivity of ZnO-nanorod growth on particular surfaces to demonstrate the possibility for pattered growth.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123390939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Nanopatterning with Extreme Ultraviolet Interference Lithography for Nanoelectronics and Biotechnology 纳米电子学和生物技术的极紫外干涉光刻纳米图案
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352046
B. Stadler, H. Solak, S. Frerker, M. Grandin, J. Voros
{"title":"Nanopatterning with Extreme Ultraviolet Interference Lithography for Nanoelectronics and Biotechnology","authors":"B. Stadler, H. Solak, S. Frerker, M. Grandin, J. Voros","doi":"10.1109/NEMS.2007.352046","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352046","url":null,"abstract":"We present a platform for the controlled patterning of nano-objects such as gold colloids in the micron and nanorange. We are separating the lithography step from the subsequent functionalization. This has many advantages among them the independence of the linkage chemistry and the lithography process and the possibility to position individual nano-objects. The lithography step is extreme UV interference lithography in the nanorange and standard photolithography in the micron range. As a proof of concept, micro and nanopatterns of single-stranded DNAs are created in an inert background of PLL-g-PEG. The DNA patterns are converted to arrays of DNA-tagged gold colloids by directed self-assembly using the specificity of DNA hybridization. Especially nanoline arrays of gold colloids have the potential to serve as e.g. nanowires for electrical label-free biosensing. In addition, we also present the characterization of the adsorption kinetics of 20 nm DNA-tagged gold colloids via SPR.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123437781","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
An Inductance-based Sensor for DNA Hybridization Detection 一种基于电感的DNA杂交检测传感器
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352072
S. Azimi, M. R. Bahmanyar, M. Zolgharni, W. Balachandran
{"title":"An Inductance-based Sensor for DNA Hybridization Detection","authors":"S. Azimi, M. R. Bahmanyar, M. Zolgharni, W. Balachandran","doi":"10.1109/NEMS.2007.352072","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352072","url":null,"abstract":"This paper introduces an inductance-based sensor for detection of DNA hybridization and investigates its performance by means of computer simulation. In order to detect the occurrence of hybridization, single strand target DNA's are tagged with magnetic beads. Target DNA's are then exposed to known single strand probe DNA's which are immobilized on a surface in the proximity of a spiral coil with a specific design. After hybridization, the expected variations in the coil inductance due to presence of magnetic beads are studied for different coils as well as magnetic beads of different sizes and permeabilities. The simulation results are presented and discussed in order to obtain optimal coil parameters with the aim of producing maximum variations in the coil inductance.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131285571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 9
Enhancement in Electrical Conductivity of Transparent Single-Walled Carbon Nanotube Films 透明单壁碳纳米管薄膜电导率的增强
2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems Pub Date : 2007-04-23 DOI: 10.1109/NEMS.2007.352262
Byung-Seon Kong, Hee‐Tae Jung, Sounghee Park, Moon-ki Park
{"title":"Enhancement in Electrical Conductivity of Transparent Single-Walled Carbon Nanotube Films","authors":"Byung-Seon Kong, Hee‐Tae Jung, Sounghee Park, Moon-ki Park","doi":"10.1109/NEMS.2007.352262","DOIUrl":"https://doi.org/10.1109/NEMS.2007.352262","url":null,"abstract":"We have developed a simple and practical method to enhance the electrical conductivity of single-walled carbon nanotube (SWNT) films without loss of their transparency. In order to achieve an enhanced conductivity of transparent SWNT films, we carried out the formation of gold nanoparticles through the reduction of gold ions (Au3+) onto the SWNT films which manufactured by the vacuum filtration method. The electroless reduction of gold ions results from redox reactions between Au3+ and SWNT sidewalls just by immersion bare SWNT films into an ethanolic aqueous solution of gold salt (HAuCl4) for several minutes. After the formation of gold nanoparticles, the electrical conductivity increased over two-fold of the initial conductivity and maintained the visible light transmittance ~80 %.","PeriodicalId":364039,"journal":{"name":"2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128347118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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